/*
*  Copyright 2019-2020 Zheng Jie
*
*  Licensed under the Apache License, Version 2.0 (the "License");
*  you may not use this file except in compliance with the License.
*  You may obtain a copy of the License at
*
*  http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*/
package me.zhengjie.service.impl;

import me.zhengjie.domain.RealBook;
import me.zhengjie.exception.EntityExistException;
import me.zhengjie.utils.ValidationUtil;
import me.zhengjie.utils.FileUtil;
import lombok.RequiredArgsConstructor;
import me.zhengjie.repository.RealBookRepository;
import me.zhengjie.service.RealBookService;
import me.zhengjie.service.dto.RealBookDto;
import me.zhengjie.service.dto.RealBookQueryCriteria;
import me.zhengjie.service.mapstruct.RealBookMapper;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import me.zhengjie.utils.PageUtil;
import me.zhengjie.utils.QueryHelp;
import java.util.List;
import java.util.Map;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.LinkedHashMap;

/**
* @website https://el-admin.vip
* @description 服务实现
* @author ...
* @date 2020-11-08
**/
@Service
@RequiredArgsConstructor
public class RealBookServiceImpl implements RealBookService {

    private final RealBookRepository realBookRepository;
    private final RealBookMapper realBookMapper;

    @Override
    public Map<String,Object> queryAll(RealBookQueryCriteria criteria, Pageable pageable){
        Page<RealBook> page = realBookRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder),pageable);
        return PageUtil.toPage(page.map(realBookMapper::toDto));
    }

    @Override
    public List<RealBookDto> queryAll(RealBookQueryCriteria criteria){
        return realBookMapper.toDto(realBookRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder)));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public RealBookDto findById(Integer realBookId) {
        RealBook realBook = realBookRepository.findById(realBookId).orElseGet(RealBook::new);
        ValidationUtil.isNull(realBook.getRealBookId(),"RealBook","realBookId",realBookId);
        return realBookMapper.toDto(realBook);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public RealBookDto create(RealBook resources) {
        if(realBookRepository.findByBarcode(resources.getBarcode()) != null){
            throw new EntityExistException(RealBook.class,"barcode",resources.getBarcode());
        }
        return realBookMapper.toDto(realBookRepository.save(resources));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void update(RealBook resources) {
        RealBook realBook = realBookRepository.findById(resources.getRealBookId()).orElseGet(RealBook::new);
        ValidationUtil.isNull( realBook.getRealBookId(),"RealBook","id",resources.getRealBookId());
        RealBook realBook1 = realBookRepository.findByBarcode(resources.getBarcode());
        if(realBook1 != null && !realBook1.getRealBookId().equals(realBook.getRealBookId())){
            throw new EntityExistException(RealBook.class,"barcode",resources.getBarcode());
        }
        realBook.copy(resources);
        realBookRepository.save(realBook);
    }

    @Override
    public void deleteAll(Integer[] ids) {
        for (Integer realBookId : ids) {
            realBookRepository.deleteById(realBookId);
        }
    }

    @Override
    public void download(List<RealBookDto> all, HttpServletResponse response) throws IOException {
        List<Map<String, Object>> list = new ArrayList<>();
        for (RealBookDto realBook : all) {
            Map<String,Object> map = new LinkedHashMap<>();
            map.put("书本编号", realBook.getBookId());
            map.put("图书馆编号", realBook.getLibraryId());
            map.put("是否被借出,1被借出,0未被借出", realBook.getIsBorrowed());
            map.put("纬度", realBook.getLatitude());
            map.put("经度", realBook.getLongtitude());
            map.put("条形码", realBook.getBarcode());
            map.put("书本类型", realBook.getType());
            map.put("是否启用 1启用 0未启用", realBook.getIsEnable());
            list.add(map);
        }
        FileUtil.downloadExcel(list, response);
    }
}